Spray solution with rechargeable microcapsules for permanent fixation on textiles or textile-like materials and subsequent loading with fragrances or additives

Abstract

Spray solution for application to textiles or textile-like materials, comprising: ◯ Microcapsules with open-pore structure, ◯ at least one binder and / or adhesion-forming agent for fixing the microcapsules to the substrate, ◯ optionally stabilizers to increase compatibility with fragrances and / or oil-based liquids, whereby the microcapsules are permanently fixed to the substrate after application and drying and remain there even after up to ten washing cycles.

Description

Technical area

[0001] The invention relates to a spray solution for application to textiles or textile-like materials, which contains microcapsules that remain permanently fixed after application and adhere to the substrate even after repeated washing. The microcapsules can be repeatedly reloaded with fragrances or other oil-based additives. State of the art

[0002] Textile or fabric coatings with microcapsules that release fragrances are well known. However, these systems have several disadvantages: ◯ The adhesion of the microcapsules to textiles or textile-like materials is often insufficient, so that they are detached after only a few washes. ◯ Reloading of the microcapsules on the substrate is usually not provided or only possible with considerable technical effort. ◯ Many known microcapsule systems show a strong initial release of fragrances, which, however, quickly diminishes, making continuous fragrance release over weeks unattainable. ◯ In addition, conventional manufacturing processes are often energy-intensive, environmentally harmful and do not allow high loading of the microcapsules with additives. ◯ Compatibility with aggressive fragrance components or oil-based liquids is also limited. Object of the invention

[0003] The object of the invention is to provide a spray solution ◯ the microcapsules are permanently fixed to textiles or textile-like materials, ◯ which enables simple and repeatable loading of the microcapsules with fragrances and / or oil-based additives, ◯ which ensures a consistent and long-lasting fragrance release, ◯ which includes environmentally friendly production of the microcapsules, ◯ which enables a high loading capacity and ◯ which can be easily processed in industrial processes. Solution

[0004] This task is solved by a special spray solution containing selected microcapsules. These capsules are characterized by an open-pore structure and are permanently fixed to textiles or textile-like materials using suitable binders or adhesion promoters.

[0005] Optionally, additional additives may be included to improve the compatibility of the capsules with various fragrances or oil-based liquids.

[0006] After application and drying, the capsules remain adhered to the substrate even after repeated washing. They can be repeatedly reloaded with fragrances or other additives using a simple process.

[0007] The structure of the capsules allows for a continuous and even release of the absorbed substances over an extended period. At the same time, their special composition ensures an intense fragrance.

[0008] The capsules are available in different grain sizes and, due to their physical properties, can be easily integrated into a wide variety of industrial processing processes.

[0009] In addition, the capsules have a particularly high absorption capacity for fragrances and active ingredients compared to conventional systems.

Claims

[1] Spray solution for application to textiles or textile-like materials, comprising: ◯ Microcapsules with open-pore structure, ◯ at least one binder and / or adhesion-forming agent for fixing the microcapsules to the substrate, ◯ optionally stabilizers to increase compatibility with fragrances and / or oil-based liquids, whereby the microcapsules are permanently fixed to the substrate after application and drying and remain there even after up to ten washing cycles. [2] Spray solution according to claim 1, characterized by that the microcapsules can be reloaded after fixation on the textile or textile-like material by simply spraying a loading liquid with fragrances and / or oil-based additives. [3] Spray solution according to one of the preceding claims, characterized bythat the microcapsules have a highly porous capillary structure, which enables a continuous and uniform release of the absorbed substances over several weeks. [4] Spray solution according to one of the preceding claims, characterized by that the microcapsules are produced in different grain sizes from d99 = 40 µm up to several millimeters. [5] Spray solution according to one of the preceding claims, characterized by that the capsules can be loaded up to three times higher than well-known competitor products. [6] Spray solution according to one of the preceding claims, characterized by that after loading it is in the form of a “dry liquid” and can therefore be easily processed in extrusion processes, textile printing or other methods. [7] Use of the spray solution according to one of the preceding claims for application to textiles or textile-like materials with subsequent reloading of the microcapsules.